on 26-Jul-2021 (Mon)

Il flusso circolare del reddito mostra i flussi reali e monetari di scambio tra famiglie e imprese.

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an a.m. temperature of >37.2°C (>98.9°F) or a p.m. temperature of >37.7°C (>99.9°F) would define a fever

Although most patients with elevated body temperature have fever, there are circumstances in which elevated temperature represents not fever but hyperthermia (heat stroke). Hyperthermia is characterized by an uncontrolled increase in body temperature that exceeds the body’s abil- ity to lose heat. The setting of the hypothalamic thermoregulatory center is unchanged. In contrast to fever in infections, hyperthermia does not involve pyrogenic molecules. Exogenous heat exposure and endoge- nous heat production are two mechanisms by which hyperthermia can result in dangerously high internal temperatures. Excessive heat pro- duction can easily cause hyperthermia despite physiologic and behav- ioral control of body temperature. For example, work or exercise in hot environments can produce heat faster than peripheral mechanisms can lose i

In patients with heat stroke syndromes and in those taking drugs that block sweating, the skin is hot but dry, whereas in fever the skin can be cold as a consequence of vasoconstriction. Antipyretics do not reduce the elevated temperature in hyperthermia, whereas in fever—and even in hyperpyrexia—adequate doses of either aspirin or acetaminophen usually result in some decrease in body temperature.